Hinge for plastic receptacles



Dec. 19, 1950 A. H. RADDE HINGE FOR PLASTIC RECEPTACLES Filed May 4,1945 drZ/zur fl. Rad

attozwug Patented Dec. 19, 1950 HINGE FOR PLASTIC RECEPTACLES Arthur H.Radde, Middlefield, Ohio, assignor to The Vlchek Tool Company,Cleveland, Ohio, a

corporation of Ohio Application May 4, 1945, Serial N 0. 592,007

(Cl. 22(l31) 4 Claims.

This invention relates to hinges for boxes made of plastic material andmore especially to plastic hinges.

The main object of the invention is to provide a box or case of plasticmaterial and a cover of the same material so hinged thereto that thecover, in its opening movement, will not become disconnected from thebox.

Another object of the invention is to provide a box and cover of theabove character, in which the body of the box and the cover are eachproduced with integral parts for cooperating to form the hinge.

A further object of the invention is to provide a box and cover ofplastic material, each having integral hinged parts joined together by aseparate member.

For a clear understanding of the invention, reference will be had to thefollowing description and accompanying drawings, and the novel featuresthereof will be particularly pointed out in the appended claims.

In the drawings,

Figure l is a rear view of a fragmental portion of the body of a box andthe cover therefor with the hinge constructed in accordance with myinvention,

Fig. 2 is an end view of same,

Fig. 3 is a plan view,

Fig. 4 is a sectional view taken on line 4-4 of Fig. 1,

Fig. 5 is a similar view to Fig. 2, the cover being open, and

Fig. 6 is a perspective view of the connecting member.

Referring to the drawings, l is a portion of the body of a box orsimilar receptacle made of plastic material and 2 a cover for the sameand made of the same material. In plastic articles of this type and whenit is desirable to provide a hinge or hinges for the cover, it is anadvantage to be able to form the hinges at the time of molding the partsto be hingedly connected together. For accomplishing same in accordancewith this invention, the upper portion of the rear side portion 3 of thebody of the box is enlarged at d and the upper edge thereof is roundedat 5 on the arc of a circle struck from a center point 6 and continuingat the rear under side I to a longitudinal face 8. At the rear side ofthe enlarged portion 4 of the side portion 3 of the body of the boxwhere each hinge is to be located, said enlarged portion for its entireheight is cut out vertically at 9 and said out out portion is furtherwidened at its lower end as at I!) leaving lateral bosses II and I2.Extending from the under side of each of the bosses H and I2 is an eyeopening 13, which terminates in the arc of a circle also struck from thecenter point 6 and indicated at M.

The rear edge of the cover 2 is enlarged to the same thickness as theenlarged upper portion 4 of the body of the box at a point correspondingto the location of each hinge as at I5, and the under side thereof isprovided with a recess [6 the arc of a circle corresponding to the are 5of the upper edge of the body of the box for serving as a complementalpart of the hinge. For connecting the hinge portion l5 of the cover tothe hinge portion 4 of the body of the box, the portion 15 is providedwith a rectangular recess H of the same width as the cut out portion 9of the body of the box, and extending up- Wardly from its under side forreceiving the shank E8 of a member !9 having oppositely extendingpintles 2G and 2! adapted to pass between the sides of the recess 10 andinto the eye r cross section the same diameter as the thickness of theshank I8 and have ball ends shown at 22.

To attach the cover 2 to the body of the box I, the cover is firstplaced in proper position upon the body of the box for closing same. Asuitable adhesive is applied to the walls of the recess i! or to theupper end portion of the shank iii of the connecting member l9, and thensaid member is placed in position by passing the shank thereofvertically up through the cut out 9 between the bosses II and ii of thebody of the box and the pintles 20 and 2! through the lower wider recessl9, and finally forcing said shank into the recess I! of the cover andsaid pintles into the eye openings [3 of said bosses until said pintlesengage the upper ends or surfaces 14 of said eye openings. When theadhesive applied to the recess ll or to the shank l8 becomes set oracting as a solvent between the plastic surfaces,

1 the connecting member I 9 is securely fixed to the cover 2, therebyconnecting the cover to the body of the box and forming the hinge. Asthe connecting member l9 serves to hold the surface of the recess it ofthe cover 2 in contact with the rounded surface 5 of the body of the boxand also the pintles 20 and 2| in contact with the surfaces l of the eyeopenings I3 in permanent relation, the cover and the connecting memberfixed therein will not become dislodged from the body of the box in theopening and closing movements of said cover. The cover 2 is limited inits opening movement, slightly beyond its fully open position, due tothe lower rear edge 23 of the enlarged portion I5 thereof engaging therear face 8 of the body of the box.

From the drawings and description, it is apparent that a simple andpractical hinge for a box made of plastic material may be provided bymolding hinge portions as parts of the body of the box and the cover atthe time of making same, and connecting said hinge portions by a plasticmember. And that the cover will be so connected to the body of the boxthat it will not become disconnected or dislodged therefrom even uponits opening or closing movements. Also that the cover will be held in alimited open position.

Having fully described my invention, what I claim is:

1. In a box made of plastic material, a body, a cover for the body, thebody having a rear side, the rear side having a rounded upper edge, thecover having a rear edge, the rear edge of the cover having a roundedrecess adapted to receive said rounded upper edge of the body, said rearside of the body having a vertical cut out, bosses at the sides of thecut out, the bosses having eye openings, said rear edge of the coverhaving a recess in alinement with said out out, a member, the memberhaving pintles, and said member being fixed in said last mentionedrecess of said rear edge of the cover and its pintles entering said eyeopenings for hingedly connecting said cover to said body.

2. In a box made of plastic material, a body, a

cover for the body, the body having a rear side,

the rear side having a rounded upper edge, the cover having a rear edge,the rear edge of the cover having a rounded recess adapted to receivesaid rounded upper edge of the body, the rear edge of the cover havingan upwardly extending vertical recess, the rear edge of the body havingeye openings, 2. member, the member consisting of a shank and a pair ofoppositely extending pintles, and the shank of said member being fixedinto said upwardly extending vertical recess of the cover and itspintles entering said eye openings for hingedly connecting said cover tosaid body.

3. In a box made of plastic material, a body, a cover for the body, thebody having a rear side, the rear side having a rounded upper edge, thecover having a rear edge, the rear edge of the cover having a roundedrecess adapted to receive and fit over said rounded upper edge of thebody, said rear side of the body having a vertical cut out, the cut outextending upwardly and being widened at each side of its lower end, saidcover having a vertical recess registering with said out out of thebody, a member, the member having a shank, the shank having lateralpintles at its lower end adapted to enter said widened portion of saidvertical cut out of the body, and said shank of said member being fixedin said recess of the cover and its pintles hingedly connecting saidcover to said body.

4. In a box made of plastic material, a body, a cover for the body, thebody having a rear side, the rear side being enlarged at its upper edge,the rear side having a rounded upper edge, the cover having a rear edge,the rear edge of the cover having a rounded recess adapted to receiveand fit over said rounded upper edge of the body, said enlarged upperedge of the side of the body having a vertical cut out for its entireheight and said out out being widened at each side at its lower end,said cover having a vertical recess above and opposite said vertical cutout of the body, a member, the member having a shank adapted to enterfrom below said vertical cut out of the body and said vertical recess ofthe cover, the shank having a pair of oppositely extending lateralpintles adapted to enter said widened cut out of the body, said roundedupper edge of the body and said rounded recess of the cover being struckfrom the center point of said pintles, and means securing the upper endof the shank of said member in said vertical recess of the cover forhingedly connecting said cover to said body.

ARTHUR H. RADDE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 399,964 Benet Mar. 19, 1889704,599 Stimson et al July 15, 1902 2,046,133 Rathbun June 30, 19362,205,969 Boenecke June 25, 1940 2,295,494 Valentine Sept. 8, 19422,347,981 Apfelbaum May 2, 1944 2,461,711 Wewetzer Feb. 15, 1949

